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272639061 = 3310097743
BaseRepresentation
bin10000010000000…
…010010001010101
3201000000111111000
4100100002101111
51024243422221
643015333513
76520252032
oct2020022125
9630014430
10272639061
1112a996842
1277381299
134463b0b6
14282d0389
1518e06e26
hex10402455

272639061 has 8 divisors (see below), whose sum is σ = 403909760. Its totient is φ = 181759356.

The previous prime is 272639039. The next prime is 272639069. The reversal of 272639061 is 160936272.

It is not a de Polignac number, because 272639061 - 26 = 272638997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272639069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5048845 + ... + 5048898.

It is an arithmetic number, because the mean of its divisors is an integer number (50488720).

Almost surely, 2272639061 is an apocalyptic number.

It is an amenable number.

272639061 is a deficient number, since it is larger than the sum of its proper divisors (131270699).

272639061 is a wasteful number, since it uses less digits than its factorization.

272639061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097752 (or 10097746 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 272639061 is about 16511.7855182291. The cubic root of 272639061 is about 648.4293921870.

The spelling of 272639061 in words is "two hundred seventy-two million, six hundred thirty-nine thousand, sixty-one".

Divisors: 1 3 9 27 10097743 30293229 90879687 272639061